Ventilatingr-stove



L.'M. PARSONS.

Hot-Air Furnace.

No. 16,607. Patented Feb. 10, 1857.

" are T OFTCE.

LUTHER M. PARSONS, OF VAUKAU, YVISCONSIN.

VENTILATING-STOVE.

Specification of Letters Patent No. 16,607, dated February 10, 1857.

To all whom it may concern Be it known that I, LUTHER M. PARSONS, of Vaukau, in the county of lVinnebago and State of Visconsin, have invented a new and Improved Radiating and Air-Heating Stove; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawing, making a part of this specification, said drawing being a vertical section of my improvement.

This invention consists in a peculiar arrangement of pipes, and a regulating device connected therewith, as will be hereinafter fully shown and described.

To enable those skilled in the art to fully understand and construct my invention, I will proceed to describe it.

A represents the fire-chamber which is of cylindrical form supported by legs (a) and having a smoke pipe B communicating with its upper end.

C represents a cylinder which encompasses the fire chamber A. This cylinder is open at its upper end and does not extend upward quite so high as the fire chamber. The lower end of the cylinder rests upon a bottom plate D and a requisite space is allowed between the cylinder C and fire chamber A.

E represents a cylinder which encompasses the cylinder A, a suitable space being allowed between the two cylinders. The cylinder E is closed at its upper end, a suitable space being allowed between the top plate of the cylinder E and the top plate of the fire chamber. The smoke pipe B passes up through the top of the cylinder E, and is encompassed by a cylinder F, the lower end of which communicates with the upper part of the cylinder E.

G represents a cold air pipe which passes up through the center of the bottom plate D. This pipe extends down through the floor and passes through the wall of the building communicating with the external air. The lower end of the cylinder E rests upon the bottom plate D, and the lower part of said cylinder has holes (6) made through it.

H represents vertical pipes the lower ends of which communicate with the fire chamber A at different points. These pipes pass up through the top plate of the cylinder E and terminate near the ceiling of the room in which the stove is placed. Two or more of these pipes may be used.

I represents a vertical pipe which also passes through the top plate of the cylinder E. This pipe extends upward to the upper part of the room and its lower end communicates with the lower part of the space between the fire chamber and cylinder C, as plainly shown in the drawing.

J represents a bent pipe, one part (c) of which is placed within the smoke pipe B, the other part (cl) passing up through the top plate of the cylinder E.

K represents a bar which is pivoted near its center to an upright This bar has a valve (6) at each end, said valve fitting one over the upper end of the part (d), of the bent pipe J, and the other over the upper end of one of the pipes H. A spiral rod ((1 is connected with the bar K by a rod (Q The use of this will be presently shown. To the cylinder F branch pipes, L, one or more are attached.

The operation is as follows: The fire being kindled, the draft passes directly upward through the smoke pipe B, as indicated by arrows 1, and the fire is supplied with air from the upper portion of the room through the vertical pipes H. The lower current of air in the room or apartment passes through the holes (1)) and escapes, in a heated state through the registers (g) in the top plate of cylinder E, or it may pass into the pipe F, to be conveyed to necessary apartments by pipes L, one or more. hen the room is sufficiently heated the bar K will be operated by the expansion of the spiral rod 0, and the upper end of the pipe H will be closed, and the upper end of the part (d) of the pipe J will be open thereby allowing the air at the upper part of the room to escape into the smoke pipe B. As the air in the room becomes cool the spiral rod contracts and the pipe H is opened at the top and the part (cl), of the pipe J, closed. This bar serves as a regulator, is self-acting, and may be applied to all the pipes H. 'The cylinder E may be constructed with double sides and the space between filled by any non-conducting material.

The advantage of the above improvement is that the fire is supplied with air from the upper part of the room where it is less pure than at the lower part, the ordinary stoves being supplied With air from the lower part of the room soon vitiate the air by extracting the oxygen from it.

The room may be properly ventilated, or, When necessary, fresh air may be admitted into the room, through the cold air pipe Gr; the fresh air being heated in passing up through the stove.

I do not claim, separately, the pipes H, bent pipe J bar K, With its valves (6) and expansion spiral rod (a for these, separately or in themselves considered, have been previously used; but

Having thus described my invention, What I claim as new and desire to secure by Let- 15 LUTHER M. PARSONS.

Witnesses:

STEPHEN SIMMONS, JAMES DENSMORE, C. C. GUNDALL. 

